Current conditions at

Galesburg Municipal Airport (KGBG)

Lat: 40.93°NLon: 90.43°WElev: 751ft.

Fair

92°F

33°C

Humidity 54%
Wind Speed SW 10 mph
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 1 Sep 1:35 pm CDT
Extended Forecast for

Monmouth IL

Heat Advisory September 1, 01:50pm until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 01:50pm until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 73. South wind around 5 mph.

    Low: 73 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 106. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 93. Heat index values as high as 103. Southwest wind around 10 mph.
Tonight
Clear, with a low around 73. South wind around 5 mph.
Wednesday
Sunny, with a high near 94. Heat index values as high as 106. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 75.
Friday
Sunny, with a high near 91.
Friday Night
Partly cloudy, with a low around 73.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 70.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 86.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Labor Day
Mostly sunny, with a high near 83.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Monmouth IL
 40.9°N 90.68°W (Elev. 774 ft)
1:26 pm CDT Sep 1, 2026
1pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database